Scientific Scratch Pad of Memo:
Physics, Mathematics, Computer Science, Statistics, Chemistry
by Mehmet Süzen
See also: Memo's Island Blog
Thursday, 23 December 2010
Why the other line[s] is likely to move faster and psychology.
Bill Hammack explains in simple terms how your line (queue) is likely to be slower compare to others [video] with mentioning Erlang's work. An interesting point in his explanation is that how humans perseive multi-queue over single queue with multiple-servers, namely assumption of multi-queue is necessarily better. Similar misconception appears in the airline boarding rules. It is very interesting that we think that multiple queues would help in row-based boarding on the airline, which is not. Recent work by Israeli group shows that random boarding is superior [doi].
Quantum Monte Carlo: Fast force computation
A recent article [doi] by Italian group proposes usage of algorithmic differentiation for force computations appeared in Quantum Monte Carlo technique.
Charge density identification in ion channels
Thursday, 16 December 2010
Cooperation and punishment via game theory in adversarial societies
A recent work discusses the role of cooperation and punishment from game theoretic perspective in adversarial societies [link]. A counter-intuitive finding is that defectors may lead to a peaceful society by introducing a player -informant- with no clear strategy.
Tuesday, 14 December 2010
Are we living in a computer simulation?
It isn't science fiction only but there are some scientific bits to this question. Nick Bostrom explains [link].
Monday, 13 December 2010
Humble Ants solve hard problems
Quite interesting recent work show that ants can solve NP-hard problems with changing configuration in an adaptive fashion. Australian & Swedish researchers were able to demostrate it experimentally; Optimisation in a natural system: Argentine ants solve the Towers of Hanoi [doi].
Sunday, 12 December 2010
Data Storage: How long can we keep it?
Apart from physical limitations, like extreme heat, failure rate and many other factors,
keeping our data storage accessible and recoverable long time is a huge challenge.
A recent article [link] on ACM queue discusses some issues on this line.
keeping our data storage accessible and recoverable long time is a huge challenge.
A recent article [link] on ACM queue discusses some issues on this line.
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